These lab exercises were designed to enhance studentsí understanding of the concept of chemical competition in ecology. They use the moss Sphagnum to illustrate the concept, which shows students that...

In this Experiment, students investigate the inhibitory effects of Eastern Hemlock trees on establishment of neighboring woody plants. Some years ago, one of the faculty in the Biology Department at...

In this Experiment, students design an experiment to examine intraspecific and interspecific competition using two species of parasitoid wasps (Nasonia vitripennis and Melittobia digitata). Students...